i think it's because i internalised the "domain names should be cute/clever/creative/individual" mindset; registering yourname.tld comes way too low on the imaginativeness scale. i wouldn't name a star/planet/city/village/company/building/house after myself either. the internet at large does seem to be shifting more towards seeing domains as equivalent to email addresses, though, so i'll probably go ahead and register myname.net at some point.